static {
try {
UnixUserGroupInformation ugi = UnixUserGroupInformation.login(DEFAULT_CONFIGURATION);
DEFAULT_USERNAME = ugi.getUserName();
// Do not use default groups, as these are pretty much useless
} catch (Exception e) {
// Should never happen but default to a reasonable value if it does
DEFAULT_USERNAME = System.getProperty("user.name");
}
DEFAULT_GROUP = DEFAULT_CONFIGURATION.get("dfs.permissions.supergroup", "supergroup");
}
